我正在使用System.ComponentModel.DataAnnotations我的Entity Framework 4.1项目进行验证.

例如:

public class Player
{
    [Required]
    [MaxLength(30)]
    [Display(Name = "Player Name")]
    public string PlayerName { get; set; }

    [MaxLength(100)]
    [Display(Name = "Player Description")]
    public string PlayerDescription{ get; set; }
}

我需要检索Display.Name注释值以在消息中显示它,例如所选的"玩家名称"是Frank.

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我需要检索注释的另一个例子:

var playerNameTextBox = new TextBox();
playerNameTextBox.MaxLength = GetAnnotation(myPlayer.PlayerName, MaxLength);

我怎样才能做到这一点？

我正在尝试找到验证MVVM中数据的最佳方法.目前,我正在尝试使用MVVM模式将IDataErrorInfo与Data Annotations一起使用.

然而,似乎没有任何工作,我不知道我可能做错了什么.我有类似的东西.

模型

public class Person : IDataErrorInfo
{
    [Required(ErrorMessage="Please enter your name")]
    public string Name { get; set; }

    public string Error
    {
        get { throw new NotImplementedException(); }
    }

    string IDataErrorInfo.this[string propertyName]
    {
        get
        {
            return OnValidate(propertyName);
        }
    }

    protected virtual string OnValidate(string propertyName)
    {
        if (string.IsNullOrEmpty(propertyName))
            throw new ArgumentException("Property may not be null or empty", propertyName);

        string error = string.Empty;

        var value = this.GetType().GetProperty(propertyName).GetValue(this, null);
        var results = new List<ValidationResult>();

        var context = new ValidationContext(this, null, …